rear wheel spacers

[CobyRupert]

Theoretically more stable, but I don't know how you measure that - go until it tips over and then back off 5ｰ? I did it for chain clearance with stability a side benefit.

Ignoring dynamic forces (momentum, etc.):

Measure from center-line of tractor to outside wheel tread: X inches. Or measure total tread width (W) and divide by 2. (X=W/2).
Measure vertical distance from ground to tractor's center of gravity: Y-inches. (I usually assume it's a couple inches above the transmission housing, but varies greatly depending on ballast, FEL, cab, etc...)

Maximum theoretical static tip (MTST) ANGLE = tan^(-1) (X/Y)
Adding spacers of S-inches results in MTST ANGLE = tan^(-1) ((X+S)/Y)

p.s. But you CAN'T ignore dynamic forces when tire sinks into woodchuck hole, or side wall flex, or that center of gravity constantly changes with raising lowering implements, FEL, etc.. soil & tire traction will determine if you slide or roll, & a whole lot of other factors...

 

[Citydude]

I cant find their web page either. I see Boras are sold by other vendors though. I'd try BroTec then.

city dude, i googled bora and found cooktops and vacation stuff. can you give me anymore info on bora. much appreciated

 

[dnw64]

Measure from center-line of tractor to outside wheel tread: X inches. Or measure total tread width (W) and divide by 2. (X=W/2).
Measure vertical distance from ground to tractor's center of gravity: Y-inches. (I usually assume it's a couple inches above the transmission housing, but varies greatly depending on ballast, FEL, cab, etc...)

Maximum theoretical static tip (MTST) ANGLE = tan^(-1) (X/Y)
Adding spacers of S-inches results in MTST ANGLE = tan^(-1) ((X+S)/Y)

Perfect. Thanks.

 

[bird1968]

Here a PDf and link to them

 

[timbowr64]

We have an old 2-wheel drive tractor that we've had 6 inch extenders on for years, and it has never hurt anything. I'm actually wanting to put Wheel extenders on my RK-55. I was thinking 3-inch, but now that I see pictures on here of someone with 4-inch on the RK37, I think 4 inch would be great!

 

[timbowr64]

Does anyone know that bolt pattern and thread are on the RK55?

 

[tacticalturnip]

You might get a better response creating your own thread in the TYM section; I suggest TYM because that forum is fairly active, and they're the OEM for RK.

 

[Ishkatan]

I worked with Wheel Adapters, Wheel Spacers, Hub Rings for your car! | Motorsport Tech to get 6" Bora spacers. Not cheap but they make a huge difference with stability on a hill. Double check your thread measurements. The first set they sent were the incorrect pitch and coned but they were really good about sending replacement spacers with flat landings and correct bolts quickly. Recommended, but still keep your bucket and bush hog low.